Refactor schema generation

[weinbe58]

Code Gen for various parts of the schema create a Results object that stores the main results for the codegen.

These objects have some internal API's that make it useful for composing results objects together, namely slice and append as these are the two things that need to be done when composing the pwl and pwc sequences together during code generation.

[github-actions]

PR Preview Action v1.4.4
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2023-10-16 20:55 UTC

[codecov]

Codecov Report

Merging #701 (91b5da7) into main (630b3e2) will decrease coverage by 0.48%.
The diff coverage is 83.79%.

❗ Current head 91b5da7 differs from pull request most recent head 5d4efde. Consider uploading reports for the commit 5d4efde to get more accurate results

@@            Coverage Diff             @@
##             main     #701      +/-   ##
==========================================
- Coverage   85.38%   84.91%   -0.48%     
==========================================
  Files          89       91       +2     
  Lines        7563     7682     +119     
==========================================
+ Hits         6458     6523      +65     
- Misses       1105     1159      +54     

Files	Coverage Δ
src/bloqade/ir/analysis/scan_variables.py	85.79% <100.00%> (+0.15%)	⬆️
src/bloqade/ir/routine/braket.py	89.74% <100.00%> (-0.26%)	⬇️
src/bloqade/ir/routine/quera.py	82.81% <100.00%> (ø)
src/bloqade/codegen/hardware/piecewise_linear.py	93.07% <93.07%> (ø)
src/bloqade/codegen/hardware/piecewise_constant.py	87.09% <87.09%> (ø)
src/bloqade/codegen/hardware/quera.py	77.55% <69.76%> (-14.73%)	⬇️

... and 1 file with indirect coverage changes

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[weinbe58]

In the next PR I/John intend to tackle the error messages. Currently we do a basic validation (on structure only, not based on what API accepts) and code generation in the same sweep but the next implementation will split the errors into a separate scan while keeping the code written here as just the emission of the task IR.